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<title>Using renv with continuous integration</title>

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<h1 class="title toc-ignore">Using renv with continuous integration</h1>



<p>When building, deploying, or testing an renv-using project with
continuous integration (CI) systems (e.g. <a href="https://github.com/features/actions">GitHub Actions</a>, <a href="https://about.gitlab.com/solutions/continuous-integration/">GitLab
CI</a>, and others) you need some way to tell the CI system to use renv
to restore the same packages that you’re using locally.</p>
<p>The general idea is:</p>
<ol style="list-style-type: decimal">
<li><p>Call <code>renv::snapshot()</code> on your local machine to
generate <code>renv.lock</code>.</p></li>
<li><p>Call <code>renv::restore()</code> on your CI service to restore
the project library from <code>renv.lock</code>.</p></li>
<li><p>Cache the project library and global renv cache on the CI
service.</p></li>
</ol>
<p>Note that this workflow is not generally a good fit for CRAN
packages, because CRAN itself runs <code>R CMD check</code> using the
latest version of all dependencies.</p>
<div id="github-actions" class="section level2">
<h2>GitHub actions</h2>
<p>Here, we describe two common approaches for integrating renv with a
<a href="https://github.com/features/actions">GitHub Actions</a>
workflow:</p>
<ul>
<li>Use the <code>r-lib/setup-renv</code> action.</li>
<li>Use GitHub’s built-in cache action together with existing renv
functionality;</li>
</ul>
<div id="using-r-libactionssetup-renv" class="section level3">
<h3>Using r-lib/actions/setup-renv</h3>
<p>The r-lib organization offers some actions for R users, and among
them a <a href="https://github.com/r-lib/actions/tree/v2-branch/setup-renv"><code>setup-renv</code></a>
action is provided for projects using renv. To use this action, you can
add the following steps to your workflow:</p>
<div class="sourceCode" id="cb1"><pre class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb1-1"><a href="#cb1-1" tabindex="-1"></a><span class="fu">steps</span><span class="kw">:</span></span>
<span id="cb1-2"><a href="#cb1-2" tabindex="-1"></a><span class="kw">-</span><span class="at"> </span><span class="fu">uses</span><span class="kw">:</span><span class="at"> actions/checkout@v3</span></span>
<span id="cb1-3"><a href="#cb1-3" tabindex="-1"></a><span class="kw">-</span><span class="at"> </span><span class="fu">uses</span><span class="kw">:</span><span class="at"> r-lib/actions/setup-r@v2</span></span>
<span id="cb1-4"><a href="#cb1-4" tabindex="-1"></a><span class="kw">-</span><span class="at"> </span><span class="fu">uses</span><span class="kw">:</span><span class="at"> r-lib/actions/setup-renv@v2</span></span></code></pre></div>
<p>Using these steps will automatically perform the following
actions:</p>
<ul>
<li>renv will be installed, via
<code>install.packages(&quot;renv&quot;)</code>,</li>
<li>renv will be configured to use the GitHub cache,</li>
<li>If provided via a <code>with: profile:</code> key, that renv profile
will be activated,</li>
<li>The project will be restored via <code>renv::restore()</code>.</li>
</ul>
<p>After this, any steps using R will use the active renv project by
default.</p>
</div>
<div id="using-the-github-actions-cache-with-renv" class="section level3">
<h3>Using the GitHub Actions Cache with renv</h3>
<p>When using renv in your own custom GitHub action workflow, there are
two main requirements:</p>
<ol style="list-style-type: decimal">
<li>Cache any packages installed by renv across runs,</li>
<li>Use <code>renv::restore()</code> to restore packages using this
cache to speed up installation</li>
</ol>
<p>As an example, these steps might look like:</p>
<div class="sourceCode" id="cb2"><pre class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb2-1"><a href="#cb2-1" tabindex="-1"></a><span class="fu">env</span><span class="kw">:</span></span>
<span id="cb2-2"><a href="#cb2-2" tabindex="-1"></a><span class="at">  </span><span class="fu">RENV_PATHS_ROOT</span><span class="kw">:</span><span class="at"> ~/.cache/R/renv</span></span>
<span id="cb2-3"><a href="#cb2-3" tabindex="-1"></a></span>
<span id="cb2-4"><a href="#cb2-4" tabindex="-1"></a><span class="fu">steps</span><span class="kw">:</span></span>
<span id="cb2-5"><a href="#cb2-5" tabindex="-1"></a></span>
<span id="cb2-6"><a href="#cb2-6" tabindex="-1"></a><span class="kw">-</span><span class="at"> </span><span class="fu">name</span><span class="kw">:</span><span class="at"> Cache packages</span></span>
<span id="cb2-7"><a href="#cb2-7" tabindex="-1"></a><span class="at">  </span><span class="fu">uses</span><span class="kw">:</span><span class="at"> actions/cache@v1</span></span>
<span id="cb2-8"><a href="#cb2-8" tabindex="-1"></a><span class="at">  </span><span class="fu">with</span><span class="kw">:</span></span>
<span id="cb2-9"><a href="#cb2-9" tabindex="-1"></a><span class="at">    </span><span class="fu">path</span><span class="kw">:</span><span class="at"> ${{ env.RENV_PATHS_ROOT }}</span></span>
<span id="cb2-10"><a href="#cb2-10" tabindex="-1"></a><span class="at">    </span><span class="fu">key</span><span class="kw">:</span><span class="at"> ${{ runner.os }}-renv-${{ hashFiles(&#39;**/renv.lock&#39;) }}</span></span>
<span id="cb2-11"><a href="#cb2-11" tabindex="-1"></a><span class="fu">    restore-keys</span><span class="kw">: </span><span class="ch">|</span></span>
<span id="cb2-12"><a href="#cb2-12" tabindex="-1"></a>      ${{ runner.os }}-renv-</span>
<span id="cb2-13"><a href="#cb2-13" tabindex="-1"></a></span>
<span id="cb2-14"><a href="#cb2-14" tabindex="-1"></a><span class="kw">-</span><span class="at"> </span><span class="fu">name</span><span class="kw">:</span><span class="at"> Restore packages</span></span>
<span id="cb2-15"><a href="#cb2-15" tabindex="-1"></a><span class="at">  </span><span class="fu">shell</span><span class="kw">:</span><span class="at"> Rscript {0}</span></span>
<span id="cb2-16"><a href="#cb2-16" tabindex="-1"></a><span class="fu">  run</span><span class="kw">: </span><span class="ch">|</span></span>
<span id="cb2-17"><a href="#cb2-17" tabindex="-1"></a>    if (!requireNamespace(&quot;renv&quot;, quietly = TRUE)) install.packages(&quot;renv&quot;)</span>
<span id="cb2-18"><a href="#cb2-18" tabindex="-1"></a>    renv::restore()</span></code></pre></div>
<p>See also the <a href="https://github.com/actions/cache/blob/main/examples.md#r---renv">example</a>
on GitHub actions.</p>
</div>
</div>
<div id="gitlab-ci" class="section level2">
<h2>GitLab CI</h2>
<p>The following template can be used as a base when using renv with <a href="https://about.gitlab.com/solutions/continuous-integration/">GitLab
CI</a>:</p>
<div class="sourceCode" id="cb3"><pre class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb3-1"><a href="#cb3-1" tabindex="-1"></a><span class="fu">variables</span><span class="kw">:</span></span>
<span id="cb3-2"><a href="#cb3-2" tabindex="-1"></a><span class="at">  </span><span class="fu">RENV_PATHS_ROOT</span><span class="kw">:</span><span class="at"> ${CI_PROJECT_DIR}/renv</span></span>
<span id="cb3-3"><a href="#cb3-3" tabindex="-1"></a></span>
<span id="cb3-4"><a href="#cb3-4" tabindex="-1"></a><span class="fu">cache</span><span class="kw">:</span></span>
<span id="cb3-5"><a href="#cb3-5" tabindex="-1"></a><span class="at">  </span><span class="fu">key</span><span class="kw">:</span><span class="at"> ${CI_PROJECT_NAME}</span></span>
<span id="cb3-6"><a href="#cb3-6" tabindex="-1"></a><span class="at">  </span><span class="fu">paths</span><span class="kw">:</span></span>
<span id="cb3-7"><a href="#cb3-7" tabindex="-1"></a><span class="at">    </span><span class="kw">-</span><span class="at"> ${RENV_PATHS_ROOT}</span></span>
<span id="cb3-8"><a href="#cb3-8" tabindex="-1"></a></span>
<span id="cb3-9"><a href="#cb3-9" tabindex="-1"></a><span class="fu">before_script</span><span class="kw">:</span></span>
<span id="cb3-10"><a href="#cb3-10" tabindex="-1"></a><span class="kw">  - </span><span class="at">&lt; ... other pre-deploy steps ... </span><span class="ch">&gt;</span></span>
<span id="cb3-11"><a href="#cb3-11" tabindex="-1"></a><span class="at">  </span><span class="kw">-</span><span class="at"> Rscript -e &quot;if (!requireNamespace(&#39;renv&#39;, quietly = TRUE)) install.packages(&#39;renv&#39;)&quot;</span></span>
<span id="cb3-12"><a href="#cb3-12" tabindex="-1"></a><span class="at">  </span><span class="kw">-</span><span class="at"> Rscript -e &quot;renv::restore()&quot;</span></span></code></pre></div>
</div>



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